Damage Detection in a Beam by the Wavelet Transform

Kim, Eung-Hun; Kim, Yun-Yeong

doi:10.22634/KSME-A.2000.24.2.518

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Damage Detection in a Beam by the Wavelet Transform

Journal title : Transactions of the Korean Society of Mechanical Engineers A
Volume 24, Issue 2, 2000, pp.518-525
Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-A.2000.24.2.518

Title & Authors

Damage Detection in a Beam by the Wavelet Transform
Kim, Eung-Hun; Kim, Yun-Yeong;

Abstract

This paper presents a new wavelet-based structural diagnostic technique. A continuous Gabor wavelet transform is shown to a very effective method in detecting damage in a beam. The beam is excited by a broad-band excitation force. For satisfactory results, the selection of an optimal wavelet is very important though the wavelet transform outperforms existing techniques such as the Wigner-Ville distribution. A specific example is given in a solid circular cylinder with a small defect

Keywords

Damage Detection;Wavelet;Wave Propagation;Dispersion Relation;

Language

Korean

Cited by

1time(s) in KSCD

웨이블렛 변환을 이용한 질량선 및 강체특성의 규명,안세진;정의봉;황대선;

한국소음진동공학회논문집, 2002. vol.12. 9, pp.725-730

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